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2023 IEEE/CVF Conference on computer Vision and Pattern Recognition Workshops, CVPRW 2023

作者： Shutova, Alina Ershov, Egor Perevozchikov, Georgy Ermakov, Ivan Banić, Nikola Timofte, Radu Collins, Richard Efimova, Maria Terekhin, Arseniy Zini, Simone Rota, Claudio Buzzelli, Marco Bianco, Simone Schettini, Raimondo Lei, Chunxia Wang, Tingniao Wang, Song Liu, Shuai Feng, Chaoyu Shao, Guangqi Wang, Hao Wang, Xiaotao Lei, Lei Xu, Lu Zhang, Chao Wang, Yasi Guo, Jin Sun, Yangfan Liu, Tianli Hao, Dejun Kinli, Furkan Özcan, Bariş Kiraç, Furkan Chung, Hyerin Lee, Nakyung Kwak, Sung Keun Conde, Marcos Elezabi, Omar Seizinger, Tim Vasluianu, Florin Hsieh, Chia-Hsuan Chen, Wei-Ting Yang, Hao-Hsiang Huang, Zhi-Kai Chang, Hua-En Chen, I-Hsiang Chen, Yi-Chung Chiang, Yuan-Chun Kuo, Sy-Yen Russia Gideon Brothers Croatia Swiss Federal Institute of Technology in Zurich Switzerland University of Milano - Bicocca Italy Zhejiang Dahua Technology China Xiaomi Inc. China Beijing Samsung Teleconmmunication R&D Center China Vision and Graphics Lab Özyeǧin University Turkey Fishency Innovation Norway T-Fashion Inc. Turkey CJ OliveNetworks AI Research Korea Republic of University of Wuerzburg Computer Vision Lab CAIDAS Germany ServiceNow United States Graduate Institute of Electronics Engineering National Taiwan University Taiwan Department of Electrical Engineering National Taiwan University Taiwan Graduate Institute of Communication Engineering National Taiwan University Taiwan University of Würzburg Germany

ISBN: (纸本)9798350302493

This paper presents a review of the NTIRE 2023 challenge on night photography rendering. The goal of the challenge was to find solutions that process raw camera images taken in nighttime conditions conditions, and thereby produce a photo-quality output images in the standard RGB (sRGB) space. Unlike the previous year's competition, participants were not provided with a large training dataset for the target sensor. Instead, this time they were given images of a color checker illuminated by a known light source. To evaluate the results, a sufficient number of viewers were asked to assess the visual quality of the proposed solutions, considering the subjective nature of the task. The highest ranking solutions were further ranked by Richard Collins, a renowned photographer. The top ranking participants' solutions effectively represent the state-of-the-art in nighttime photography rendering. More results can be found at https://***/ © 2023 IEEE.

关键词： Photography

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International Conference on Lightning Protection (ICLP)

作者： M. Azadifar M. Rubinstein F. Rachidi V.A. Rakov D. Pavanello S. Metz University of Applied Sciences of Western Switzerland IICT Yverdon Switzerland EMC Lab. Swiss Federal Institute of Technology Lausanne Switzerland Dept. Electrical and Computer Eng. University of Florida Gainesville FL USA University of Applied Sciences of Western Switzerland Sion Switzerland Huber+Suhner AG Herisau Switzerland

We report on general characteristics of simultaneous channel-base current and distant electric fields for five upward positive flashes recorded at the Säntis tower in Summer 2014. We describe the salient features of the upward negative leader process initiating upward positive flashes and compare them with those of the downward negative leader process found in the literature. Our observations show considerable similarity between those two processes.

关键词： Electric fields Current measurement Poles and towers Lightning Electric breakdown High-speed optical techniques

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Characteristics of electric fields of upward negative stepped leaders

Characteristics of electric fields of upward negative steppe...

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International Symposium on Lightning Protection (XII SIPDA)

作者： M. Azadifar F. Rachidi M. Rubinstein M. Paolone V.A. Rakov D. Pavanello S. Metz C. Romero Swiss Federal Institute of Technology EMC Lab. Lausanne Switzerland IICT University of Applied Sciences of Western Switzerland Yverdon Switzerland DESL Swiss Federal Institute of Technology Lausanne Switzerland Dept. Electrical and Computer Eng. University of Florida Gainesville FL USA University of Applied Sciences of Western Switzerland Sion Switzerland Huber+Suhner AG Herisau Switzerland Montena Technology Rossens Switzerland

We report simultaneous measurements of vertical electric fields and currents associated with positive flashes to the Säntis tower. The fields were measured at a distance of 14.7 km from the tower. All the data correspond to type-2 positive flashes characterized by currents with relatively slow rising portion on which oscillatory pulse trains, inferred to be due to an upward negative stepped leader, are superimposed. Bipolar electric field and current pulses associated with the upward negative stepped leader are examined and analyzed. The widths of the initial and second half cycles are found to be similar. The peak of the initial half cycle is found to be, on average, about twice as high as the peak of the second half cycle. A nearly linear correlation is found between the field peaks and associated current peaks.

关键词： Electric fields Poles and towers Current measurement Magnetic field measurement Lightning Sensors

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25th Annual Computational Neuroscience Meeting CNS-2016, Seogwipo City, South Korea, July 2-7, 2016 Abstracts

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BMC NEUROSCIENCE 2016年第1期17卷 1-112页

作者： [Anonymous] Computational Neurobiology Laboratory The Salk Institute for Biological Studies San Diego USA UNIC CNRS Gif sur Yvette France The European Institute for Theoretical Neuroscience (EITN) Paris France ATR Computational Neuroscience Laboratories Kyoto Japan Krembil Research Institute University Health Network Toronto Canada Department of Physiology University of Toronto Toronto Canada Department of Medicine (Neurology) University of Toronto Toronto Canada Department of Physics University of New Hampshire Durham USA Department of Neurophysiology Nencki Institute of Experimental Biology Warsaw Poland Department of Theory Wigner Research Centre for Physics of the Hungarian Academy of Sciences Budapest Hungary Department of Mathematical Sciences KAIST Daejoen Republic of Korea Department of Mathematics University of Houston Houston USA Department of Biochemistry & Cell Biology and Institute of Biosciences and Bioengineering Rice University Houston USA Department of Biology and Biochemistry University of Houston Houston USA Grupo de Neurocomputación Biológica Dpto. de Ingeniería Informática Escuela Politécnica Superior Universidad Autónoma de Madrid Madrid Spain Department of Biological Sciences University of Southern California Los Angeles USA Center for Neuroscience Korea Institute of Science and Technology Seoul South Korea Department of Neurology Albert Einstein College of Medicine Bronx USA Center for Neuroscience KIST Seoul South Korea Department of Neuroscience University of Science and Technology Daejon South Korea Systems Neuroscience Group QIMR Berghofer Medical Research Institute Herston Australia Department of Psychology Yonsei University Seoul South Korea Department of Psychiatry Kyung Hee University Hospital at Gangdong Seoul South Korea Department of Psychiatry Veterans Administration Boston Healthcare System and Harvard Medical School Brockton USA Department of Electrical and Electronic Engineering The University of Melbourne Parkvil

A1 Functional advantages of cell-type heterogeneity in neural circuits Tatyana O. Sharpee A2 Mesoscopic modeling of propagating waves in visual cortex Alain Destexhe A3 Dynamics and biomarkers of mental disorders Mitsuo Kawato F1 Precise recruitment of spiking output at theta frequencies requires dendritic h-channels in multi-compartment models of oriens-lacunosum/moleculare hippocampal interneurons Vladislav Sekulić, Frances K. Skinner F2 Kernel methods in reconstruction of current sources from extracellular potentials for single cells and the whole brains Daniel K. Wójcik, Chaitanya Chintaluri, Dorottya Cserpán, Zoltán Somogyvári F3 The synchronized periods depend on intracellular transcriptional repression mechanisms in circadian clocks. Jae Kyoung Kim, Zachary P. Kilpatrick, Matthew R. Bennett, Kresimir Josić O1 Assessing irregularity and coordination of spiking-bursting rhythms in central pattern generators Irene Elices, David Arroyo, Rafael Levi, Francisco B. Rodriguez, Pablo Varona O2 Regulation of top-down processing by cortically-projecting parvalbumin positive neurons in basal forebrain Eunjin Hwang, Bowon Kim, Hio-Been Han, Tae Kim, James T. McKenna, Ritchie E. Brown, Robert W. McCarley, Jee Hyun Choi O3 Modeling auditory stream segregation, build-up and bistability James Rankin, Pamela Osborn Popp, John Rinzel O4 Strong competition between tonotopic neural ensembles explains pitch-related dynamics of auditory cortex evoked fields Alejandro Tabas, André Rupp, Emili Balaguer-Ballester O5 A simple model of retinal response to multi-electrode stimulation Matias I. Maturana, David B. Grayden, Shaun L. Cloherty, Tatiana Kameneva, Michael R. Ibbotson, Hamish Meffin O6 Noise correlations in V4 area correlate with behavioral performance in visual discrimination task Veronika Koren, Timm Lochmann, Valentin Dragoi, Klaus Obermayer O7 Input-location dependent gain modulation in cerebellar nucleus neurons Maria Psarrou, Maria Schilstra, Neil Davey, Benjamin Torben-Ni

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An update on the charaterictics of positive flashes recorded on the Säntis Tower

An update on the charaterictics of positive flashes recorded...

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International Conference on Lightning Protection (ICLP)

作者： M. Azadifar M. Paolone D. Pavanello F. Rachidi V.A. Rakov C. Romero M. Rubinstein Swiss Federal Institute of Technology EMC Lab. Lausanne Switzerland Swiss Federal Institute of Technology DESL Lausanne Switzerland University of Applied Sciences of Western Switzerland Sion Switzerland Dept. Electrical and Computer Eng. University of Florida Gainesville FL USA University of Applied Sciences of Western Switzerland IICT Yverdon Switzerland

We present an update on the characteristics of positive flashes recorded on the Säntis Tower in Switzerland from May 2010 to January 2013, during which period 38 positive flashes were recorded. Out of the 38 recorded flashes, 1 was identified as a normal downward flash, 5 were classified as type-1 flashes (characterized by a large unipolar impulse) and the rest of the flashes (32) were classified as type-2 flashes (characterized by a slow waveform with superimposed pulse train). We present a summary of the characteristics of the lightning current parameters for type-1 and type-2 flashes separately and for both types combined. We also present a comparison between the present results corresponding to type-1 flashes and Berger et al.'s data for flashes with large impulsive currents. A similar comparison is presented between type-2 flashes in this study and Berger et al.'s data for flashes without large impulsive currents. In the latter comparison, the most significant differences between the two datasets are in the peak current and the amount of transferred charge, both of which are substantially larger in our type-2 flash dataset. We finally present a discussion of the oscillatory pulse trains in type-2 flashes. Our data are found to be, in general, consistent with those observed at the Gaisberg tower. However, the overall leader pulse duration and the individual pulse duration observed at Säntis are higher than their counterparts at Gaisberg.

关键词： Poles and towers Current measurement Instruments Lightning protection Educational institutions Coils

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Wearable assistant for load monitoring: Recognition of on-body load placement from gait alterations

Wearable assistant for load monitoring: Recognition of on-bo...

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2010 4th International Conference on Pervasive Computing Technologies for Healthcare, Pervasive Health 2010

作者： Benocci, Marco Bächlin, Marc Farella, Elisabetta Roggen, Daniel Benini, Luca Tröster, Gerhard Electronics Computer Sciences and Systems - DEIS University of Bologna Italy Wearable Computing Lab. Swiss Federal Institute of Technology Zürich Switzerland

ISBN: (纸本)9789639799899

Daily life activities such as working and shopping may cause people to carry overloaded bags, frequently borne in an incorrect way (e.g. only on one shoulder, asymmetrically worn). When these activities alter the gait, back pain incidents can occur. Critical conditions can be monitored taking advantage from a wearable assistant, extracting contextual information by on-body acceleration signals. By acquiring data on trunk, limb and foot during gait, we are able to detect five walking tasks on loaded conditions: two-straps backpack carried on shoulders, backpack carried with a single strap on right and left shoulder, bag carried with the right and left hand. Seven subjects participated walking at self-selected speed on a treadmill carrying a load between 10-12% of their body weight. Subjects repeated each task for five times over three weeks. We classified the activities for a single user by use of KNN, naïve Bayes and SVM classifiers. KNN achieved the best recognition accuracy of 96.7% for day dependent classifier training. The sensors placement, which resulted to be different along consecutive days, affects performance evaluation: a +3° rotation on the coronal plane decreases the accuracy to 76.0%.

关键词： Wearable sensors

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Editorial

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computer Animation and Virtual Worlds 2010年第1期21卷 iii页

作者： Magnenat-Thalmann, Nadia Thalmann, Daniel MIRALab-CUI University of Geneva 24 rue du Général-Dufour CH 1211 Geneva 4 Switzerland Computer Graphics Lab Swiss Federal Institute of Technology CH-1015 Lausanne Switzerland

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Towards solving the missing marker problem in realtime motion capture

Towards solving the missing marker problem in realtime motio...

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ASME 2009 International Design Engineering Technical Conferences and computers and Information in Engineering Conference, IDETC/CIE2009

作者： Piazza, Tommaso Lundström, Johan Hugestrand, Alexander Kunz, Andreas Fjeld, Morten T2I Lab. Dept. of Computer Science and Engineering Chalmers University of Technology Sweden Dept. of Mechanical and Process Engineering Swiss Federal Institute of Technology Switzerland

ISBN: (纸本)9780791848999

A common problem in optical motion capture is the so-called missing marker problem. The occlusion of markers can lead to significant loss of tracking accuracy unless continuous data flow is guaranteed by computationally demanding interpolation or extrapolation schemes. Since interpolation algorithms require data sampled before and after an occlusion, they cannot be used for real-time applications. Extrapolation algorithms only require data sampled before an occlusion. Other algorithms require statistical data and are designed for post-processing. In order to bridge sampling gaps caused by occluded markers and hence to improve 3D real-time motion capture, we suggest a real-time extrapolation algorithm. The realization of this prediction algorithm does not need statistical data or rely on an underlying cinematic human model with pre-defined marker distances. Under the assumption that natural motion can be linear, circular, or a linear combination of both, a prediction method is suggested and realized. The paper presents linear and circular movement measurements for use when a marker is briefly lost. The suggested extrapolation method seems to behave well for a reasonable number of frames, not exceeding 200 milliseconds. © 2009 by ASME.

关键词： Interpolation

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Monte carlo localization in outdoor terrains using multi-level surface maps

Monte carlo localization in outdoor terrains using multi-lev...

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作者： Kümmerle, Rainer Triebel, Rudolph Pfaff, Patrick Burgard, Wolfram Department of Computer Science University of Freiburg Germany Autonomous Systems Lab. Swiss Federal Institute of Technology Zurich Switzerland

ISBN: (纸本)9783540754039

In this paper we consider the problem of mobile robot localization with range sensors in outdoor environments. Our approach applies a particle filter to estimate the full six-dimensional state of the robot. To represent the environment we utilize multi-level surface maps which allow the robot to represent vertical structures and multiple levels in the environment. We describe probabilistic motion and sensor models to calculate the proposal distribution and to evaluate the likelihood of observations. Experimental results obtained with a mobile robot in an outdoor environment indicate that our approach can be used to robustly and accurately localize an outdoor vehicle. The experiments also demonstrate that multi-level surface maps lead to a significantly better localization performance than standard elevation maps. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Mobile robots

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Expected system energy consumption minimization in leakage-aware DVS systems

Expected system energy consumption minimization in leakage-a...

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International Symposium on Low Power Electronics and Design (ISLPED)

作者： Jian-Jia Chen Lothar Thiele Computer Engineering and Networks Lab. (TIK) Swiss Federal Institute of Technology Zurich (ETH Zurich) Switzerland Computer Engineering and Networks Lab. (TIK) (ETH Zurich) Switzerland

The pursuit of energy efficiency is becoming more and more important in hardware and software designs. This research explores energy-efficient scheduling for a periodic real-time task with uncertain execution time in dynamic voltage scaling (DVS) systems with non-negligible leakage/static power consumption. Distinct from the assumption of non-reducible static power consumption in the literature, this paper considers the possibility to reduce it by turning a processor to a dormant mode. We propose an algorithm to derive an optimal frequency assignment to minimize the expected energy consumption without procrastination, while another extended algorithm is developed to apply procrastination scheduling for further energy reduction. Experimental results show that the proposed algorithms can effectively minimize the expected energy consumption.

关键词： Energy consumption Voltage control Energy efficiency Processor scheduling Scheduling algorithm Hardware Software design Dynamic scheduling Real time systems Dynamic voltage scaling

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